GROUP:-1
POTENTIAL DIVIDER

COMPONENTS:- Resistance, Power supply (Vdc), Ground
THEORY:- 
In this practical, we have to divide the potential (voltage) in two or more. For that we have to connect the two resistors in series with power supply. The power may be AC or DC. Then we can take the voltage drop between the two resistors. This total voltage drop equal to the main power supply. Here we study about the voltage drop between the two terminals of resistance. We will observe the graph of having variable dc voltage & parameter circuit. 
CIRCUIT DIAGRAM:- 
Primary circuit diagram of voltage divider circuit is as shown in below fig.

PROCEDURE:-
~ Click on student capture,
~ Then click on file and go to new => project,               
~ There you will see a box,
~ First give the file name and click on ok,
~ There you will see a new box, there you select "create a blank project" and click on OK,
~ Then in the schematic page draw the circuit as per as circuit diagram.

1.	Constant power supply and R1 & R2	

In this Practical we have the constant dc supply and also constant value of R1 & R2. Then we will measure the voltage drop across each resistance and it equal to the main dc supply.

Procedure:-
1.	Click on student capture,
2.	Then click on file and go to new => project,               
3.	There you will see a box,
4.	First give the file name and click on ok,
5.	There you will see a new box, there you select "create a blank project" and click on OK,
6.	Then draw  the circuit as per as circuit diagram,

~ Now  run the circuit as a bias point, u will find the following fig.

~ Now join the probes.
~ Then put a probe of voltage in this circuit as shown in fig, Then edit the stimulation profile   and run the profile as time domain.
~ Run the circuit.
~ You can see the graph of the circuit in the below fig. 

OBSERVATION :-

	

 ~ Now if your voltage supply is AC as shown in the circuit diagram above then you get the output as shown below.

2.	Variable DC supply, Constant R1 & R2	

In this practical, we will just vary the voltage source, but the both values of resistors are constant. Then observe the voltage drop across the resistance.
The circuit diagram is as shown below:

Procedure:-
~ Draw the circuit as per the circuit diagram.
~ Now, again edit the profile and run the profile as DC sweep, where vary the voltage value from -10 to 10 with 1 increment.
~ Now join the probe & run the circuit, u will find the following fig.

OBSERVATION :- 

3.	Variable DC Supply and R2 & Constant R1	

In this practical, we will vary the voltage source and also vary the value of one of the resistor. Here we will vary the value of resistor R2. Then observe the voltage drop across each resistors. 
The circuit diagram is as shown in fig.

~ Now take PARAMETER from the special library.
~ Then go to the property of that PARAMETER and click on the new row. Then write the name of the parameter and value. Then click on display and click on name and value.
~Now edit simulation profile as secondary and run as global parameter. Then apply the name of the parameter and give range of the resistors for which you have to vary. 
~ Here R2 varies from 100 ohm to 600 ohm & V1 varies from -10V to 10V.

~ Now run the circuit and observe the graph.

OBSERVATION :- You can observe the graph of the parameter circuit.

CONCLUSION:-